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The UV flashlight is technically like a black light, emitting UV light. UV light simply has a frequency higher than visible light.

Thala H. has bought UV lights before, but none that worked as well as this one. “I showed my sister on FaceTime how well this works and she immediately bought one too. It shows everything. Every little dirt or water spot. It shows stuff I swear I cleaned well but apparently I didn’t…Looking at my apartment with this makes me want to mega deep clean every surface.”

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Depending on what brand of UV light you purchase, urine will prompt the light to show white, yellow, green, blue or purple.

We love our dogs, despite their mess. Now, finding and cleaning up those messes is easier than ever with this UV Flashlight Pet Urine Detector.

Pet lovers who are tired of smelling but not seeing all the messes discovered they could find invisible urine stains using the UV Flashlight Pet Urine Detector. It makes a great inexpensive gift for pet owners. Even the “yuck” factor has a quirky novelty appeal.

UV flashlights are excellent for detecting urine! If you suppose your four-legged best friend has gone to the bathroom or had an accident on the carpet, floor or upholstery, these flashlights can confirm it.

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The focal length of a lens is a fixed characteristic and cannot be changed. However, the field of view and magnification can be altered by using different lenses or adjusting the distance between the lens and the image sensor.

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We can almost always smell the nasty evidence of pet odor, but we can’t always see the evidence of bathroom accidents. Even the best carpet cleaners and pet vacuums can’t clean an invisible stain. That’s why a UV Flashlight Pet Urine Detector can be so useful.

Aside from messes from dog paws, pets have accidents—or sometimes mark on purpose—in unexpected places. It goes beyond the puppy being unable to make it out the door, meaning you’ll have to clean the carpet. Pet puddles and plops end up staining the furniture, too. Aside from the “solid” creativity you might easily find, your leg-lifting dog staining the bedspread or walls with urine won’t leave a neon dog pee mark.

But most biological fluids, including urine, contain phosphorus that naturally glows in the presence of oxygen. You can’t see the glow under normal light. But certain UV wavelengths of light, like the ones found in the UV Flashlight Pet Urine Detector, make the glow easier to see. Once you’ve identified it, you can get that dog pee out of your carpet.

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Verified purchaser Rebecca Anderson also loves it for cleaning cat urine. “This is a fantastic thing! I have a cat who gets mad at me from time to time. When he does, he just backs up to a wall or something and pees against it,” she writes. “I can smell it later, but usually can’t find it. Not anymore! Using this black light, it lights up brightly and I can deep clean the area. Added bonus is that when it’s cleaned up, he doesn’t go back to that spot. I’ve needed this thing for years.”

The focal length of a lens is directly related to its magnification power. A shorter focal length results in a wider field of view and less magnification, while a longer focal length results in a narrower field of view and greater magnification.

The product continues to fly off the shelves and became a viral sensation, with over 56,000 Amazon ratings averaging 4.4 stars. As of May 2023, this UV flashlight continues to rank number one in the category of Pet Urine Detectors.

As long as you keep the batteries charged in the flashlight and keep it in. a secure spot when not in use, a UV flashlight can last for years. Also, replacing the bulbs is another part of its upkeep.

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This handheld device looks and works like a flashlight. Instead of a normal lightbulb, the pet urine detector, or black light urine detector, uses 51 individual ultraviolet (UV) lights that prompt certain fluids to glow under its illumination due to its high frequency.

“I got it to make sure I was spraying enzymatic cleaner in the right places whenever my [fur babies] have an accident on the carpet, writes five-star reviewer Alex Campbell. “I always blot as much as I can before using, and just hope I’m spraying the cleaner in the right places. This helped with that a ton. Now I can actually make sure I’m spraying enough cleaner in the right areas, and I can make sure it’s all gone when the cleaner dries, so there’s no faint urine smell.”

Focal lengthcalculator from image

The UV flashlight is technically like a black light, emitting UV light. UV light simply has a frequency higher than visible light.

Focal length is a measurement of the distance between the center of a lens and the point where light rays converge to form a clear image. It is typically measured in millimeters (mm) and is an important factor in determining the magnification and field of view of a lens.

For more pet stain removal products, check out the Bissell Little Green Machine, the Bissell Pet Stain Eraser, the Angry Orange Odor Eliminator and the Folex Carpet Spot Remover.

The UV flashlight is technically like a black light, emitting UV light. UV light simply has a frequency higher than visible light. It goes a step further than pet odor removal, helping you tackle the mess once and for all.

Focal length can be calculated by dividing the distance from the lens to the image sensor (or film) by the distance from the lens to the subject. This is known as the thin lens equation: 1/f = 1/di + 1/do, where f is the focal length, di is the distance from the lens to the image sensor, and do is the distance from the lens to the subject.

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As an author of 35+ pet books and a certified animal behavior consultant, I often hear from pet lovers complaining about hit-or-miss potty behavior—and subsequently, questions about how to remove pet stains from carpet. While dog smell isn’t always related to accidents (there are medical reasons why dogs smell bad), bathroom incidents are a top reason that pets lose their homes.

The size of the image sensor can affect the effective focal length of a lens. A larger sensor will capture a wider field of view and result in a shorter effective focal length, while a smaller sensor will capture a narrower field of view and result in a longer effective focal length.

The UV Flashlight Pet Urine Detector is available at Walmart and Amazon. You’ll find the best price by shopping at Amazon, though.

Lots of things glow under UV light, including carpet fuzz, bugs and toys. Just vacuum the area first so that you don’t get distracted (or horrified) by all the shiny detritus revealed.